body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

nav {
    background-color: #333;
    overflow: hidden;
}

nav ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
    text-align: center;
}

nav ul li {
    display: inline-block;
}

nav ul li a {
    display: block;
    color: white;
    text-align: center;
    padding: 14px 20px;
    text-decoration: none;
    transition: background-color .5s ease;
}

nav ul li a:hover {
    background-color: #575757;
}

.content {
    padding: 20px;
    margin: auto;
    width: 700px;
    text-align: left;
}

.content img {
    display: block;
    margin: auto;
    max-width: 100%;
    height: auto;
}

h1 {
    padding-top: 30px;
    font-size: xx-large;
}

h2 {
    padding-top: 50px;
    font-size: x-large;
}

.content a {
    color: cornflowerblue;
    font-weight: bold;
    text-decoration: none;
    transition: color .5s ease;
}

.content a:hover {
    color: coral;
}